GoTreads are a unique, patented automotive tool designed in 1975 to provide the traction needed to get vehicles going again when stuck in snow, mud, or sand. Go Treads were designed around one word – simple. It stores in small places. It can be put in position in a matter of seconds – no tools, no assembly, no attaching to the tire required. The smooth finish of the tool allows the snow and mud to shake off for easy cleaning. GoTreads are made of flexible, high strength, high impact polypropylene copolymer with special additives to give this durable plastic even greater toughness. Yet with all this strength, it weighs only 5.8 pounds. Note: On smaller vehicles like cars and mini vans, typically only one GoTread is needed in most situations. However, we do recommend having 2 available in case more then one wheel gets stuck. For the best performance, use one GoTread per driving wheel on your vehicle. Proudly made in the USA. Item ships as a 2 pack unit.